Mr. Joshua P. Walton Profile

Joshua P. Walton

Senior Opto-Mechanical Engineer

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 28 July 2008 Paper

Paper

Mount-induced deflections in 8-inch flat mirrors at the Navy Prototype Optical Interferometer

James Clark, F. Ernesto Penado, Michael DiVitorrio, Joshua Walton

Proceedings Volume 7013, 70133K (2008) https://doi.org/10.1117/12.790257

KEYWORDS: Mirrors, Finite element methods, Interferometers, Prototyping, Phase shifts, Tolerancing, Zerodur, Optics manufacturing, Coating, Off axis mirrors

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Proceedings Article | 17 September 2007 Paper

Paper

Pier vibration isolation for lightweight interferometry telescopes

Perry Wood, F. Ernesto Penado, James Clark, Joshua Walton

Proceedings Volume 6665, 66650L (2007) https://doi.org/10.1117/12.732730

KEYWORDS: Telescopes, Space telescopes, Optical isolators, Interferometers, Buildings, Vibration isolation, Interferometry, Prototyping, Wave propagation, Image quality

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Proceedings Article | 17 September 2007 Paper

Paper

Design of asymmetrically loaded end-plates with vacuum seal surfaces for the Navy Prototype Optical Interferometer

Joshua Walton, James Clark, F. Ernesto Penado

Proceedings Volume 6665, 666513 (2007) https://doi.org/10.1117/12.733962

KEYWORDS: Finite element methods, Computer aided design, Safety, Tolerancing, Prototyping, Manufacturing, Interferometers, Solid modeling, Observatories, Surface finishing

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Proceedings Article | 17 September 2007 Paper

Paper

Current alignment techniques and tools for building, aligning, and reconfiguring an optical array at the Navy Prototype Optical Interferometer

James Clark, Joshua Walton

Proceedings Volume 6665, 666511 (2007) https://doi.org/10.1117/12.734248

KEYWORDS: Mirrors, Light emitting diodes, Telescopes, Optical alignment, Tolerancing, Vignetting, Prototyping, Interferometers, Eye, Optical arrays

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Proceedings Article | 17 September 2007 Paper

Paper

Calculation of the elastic properties of a triangular cell core for lightweight composite mirrors

F. Ernesto Penado, James Clark, Joshua Walton, Robert Romeo, Robert Martin

Proceedings Volume 6665, 66650B (2007) https://doi.org/10.1117/12.732689

KEYWORDS: Composites, Mirrors, Finite element methods, Lightweight mirrors, Aluminum, Telescopes, Carbon, Interfaces, 3D modeling, Optical telescopes

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Proceedings Article | 17 September 2007 Paper

Paper

Design and analysis of a rotationally resistant floor for a telescope enclosure

Perry Wood, F. Ernesto Penado, James Clark, Joshua Walton

Proceedings Volume 6665, 66650J (2007) https://doi.org/10.1117/12.732725

KEYWORDS: Telescopes, Finite element methods, Optical instrument design, Fourier transforms, Solids, Analytical research, Interferometry, Interferometers, Optical interferometry, Soil science

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Proceedings Article | 17 September 2007 Paper

Paper

Optical mount modifications for increased articulation at the Navy Prototype Optical Interferometer

James Clark, Joshua Walton, F. Ernesto Penado, Denver Smith

Proceedings Volume 6665, 666512 (2007) https://doi.org/10.1117/12.734171

KEYWORDS: Mirrors, Actuators, Prototyping, Interferometers, Telescopes, Optical alignment, Mirror mounts, Optical mounts, Light emitting diodes, Metrology

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Proceedings Article | 29 August 2006 Paper

Paper

The 1.4 meter lightweight carbon fiber mount for the Naval Prototype Optical Interferometer

Jonathan Andrews, Sergio Restaino, Christopher Wilcox, Scott Teare, Ty Martinez, Jim Clark, Josh Walton, Robert Romeo, Robert Martin

Proceedings Volume 6306, 63060R (2006) https://doi.org/10.1117/12.682102

KEYWORDS: Telescopes, Adaptive optics, Interferometers, Prototyping, Carbon, Mirrors, Optical instrument design, Electronics, Composites, Optics manufacturing

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Proceedings Article | 29 June 2006 Paper

Paper

Characterization of the optical throughput performance of the Navy Prototype Optical Interferometer (NPOI)

Xiaolei Zhang, J. Thomas Armstrong, James Clark, G. Charmaine Gilbreath, Robert Lucke, Sergio Restaino, David Mozurkewich, James Benson, Donald Hutter, Nat White, Henrique Schmitt, Joshua Walton

Proceedings Volume 6268, 62683V (2006) https://doi.org/10.1117/12.670001

KEYWORDS: Mirrors, Spectroscopy, Interferometers, Ocean optics, Beam splitters, Geometrical optics, Sensors, Charge-coupled devices, Prototyping, CCD cameras

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Proceedings Article | 20 October 2004 Paper

Paper

Alignment of vacuum feed stations on the Navy Prototype Optical Interferometer

James Clark, James Murphy, Long Ha, Joshua Walton, James Howard, J. Armstrong, G. Gilbreath, Robert Hindsley, Thomas Pauls

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550867

KEYWORDS: Mirrors, Telescopes, Optical alignment, Light emitting diodes, Ocean optics, Prototyping, Interferometers, Optical fabrication, Alignment procedures, Inspection

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Proceedings Article | 20 October 2004 Paper

Paper

Optical drift test of the long delay line stations on the Navy Prototype Optical Interferometer

James Clark, James Murphy, Long Ha, Joshua Walton, James Howard, J. Armstrong, G. Gilbreath, Robert Hindsley, Thomas Pauls

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550889

KEYWORDS: Mirrors, Telescopes, Ocean optics, Light emitting diodes, Prototyping, Interferometers, Optical testing, Cameras, Optical tracking, Mirror mounts

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Proceedings Article | 24 September 2004 Paper

Paper

Reflectometer shoot-out: comparing the performance and accuracy of hand-held reflectometers

Michael DiVittorio, Joshua Walton

Proceedings Volume 5494, (2004) https://doi.org/10.1117/12.552123

KEYWORDS: Reflectivity, Reflectometry, Mirrors, Calibration, Dental caries, Light scattering, Temperature metrology, Head, Optical coatings, Specular reflections

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Showing 5 of 12 publications

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